GNS3 Tutorial - PDF Documentation

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From the developers: " GNS3 is a graphical network simulator that allows simulation of complex networks.

To allow complete simulations, GNS3 is strongly linked with :

  • Dynamips, the core program that allows Cisco IOS emulation.
  • Dynagen, a text-based front-end for Dynamips.
  • Qemu, a generic and open source machine emulator and virtualizer.


GNS3 is an excellent complementary tool to real labs for network engineers, administrators and people wanting to pass certifications such as CCNA, CCNP, CCIP, CCIE, JNCIA, JNCIS, JNCIE.

It can also be used to experiment features of Cisco IOS, Juniper JunOS or to check configurations that need to be deployed later on real routers.

This project is an open source, free program that may be used on multiple operating systems, including Windows, Linux, and MacOS X."

 

Here is a FREE excellent document in PDF format explaining how to use GNS3 - highly recommended for beginners.

Download the free PDF document here for FREE

Also look at this quick start guide to GNS3 and VMware.

Where do I get GNS3?


Free Video tutorials

    Forums - lots of help

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David Bombal CCIE #11023
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Comments

Hello David

Thank you for this excellent idea of allowing more and more CCIE candidates to use your , I can say that now, excellent product. As you probably remember  I thought of using it for a long time but this promotion has given me the opportunity to do it .

I have Dynamips there and there is no better combination of the 2 together while doing configurations.

Best regards
Giorgio

David,

Great, thanks a lot.
By the way, I love your monthly newsletters, they’re great reading and learning material.  Keep up the good work.

Rgds

Dominic Foley

I think the new version of the command memorizer is brilliant and has been a massive help during studying for the exams

Thanks for the quick response. Feel free to use the comments. If you’d like to add something else I will tell you that I found your proof-readers to be particularly good.

This is my 8th certification test in the last year and frequently the answers that are given are just blantantly wrong.

It was a good feeling to not find myself confused.

Casey Lightner

Great program, it really simplifies/speeds up my job! (VPN Config Generator)

Colin Sheppard

Hi David,

Your apps are some of the best I’ve seen.

I’m contemplating getting a my CCIE in routing and will be looking at purchasing your memorization tool. Thanks.

Cliff

Hello David,

Thank you for your  quick response, and great customer service, I will highly recommend your product in this day in age, customer service is at a premium your handling of this situation was excellent.

Thank you very much,

Robert Reyes Sr.
Hi David,

Just to let you know, I passed the IPTD exam last Friday.

Many thanks for a most enjoyable and productive course, I appreciate you went off track to cover the items I asked for (CCM 5.x and 6.0..etc) it was really appreciated.

Cheers,
Ian Hinchliff

I love the newsletter, they contain very valuable information

Thanks.

Tu Amor

Hi - thought the newsletter was excellent.

Barry Pimlott

Ireland

Thanks for the answer, it's been getting to me for months, and I just keep forgetting to ask you for a solution. You have no idea how much time that little command is going to safe me. I'm working on a huge security network which has over 80 firewalls some of which have over 3000 lines of access-lists.

It's a pain in the neck trying to find a single host with a certain port to see if the access-list exists, so this is going to safe me a stack of time :)

Jay Whale
South Africa